Bundling messages in communication networks

• US 7,406,074 B2
• Filed: 07/12/2002
• Issued: 07/29/2008
• Est. Priority Date: 07/12/2002
• Status: Active Grant

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Nagarajan, Ramesh, Doshi, Bharat T.
• Primary Examiner(s): Vu, Huy D.
• Assistant Examiner(s): HAN, CLEMENCE S
• Application Number:
  US10/193,932
• Publication Number:
  US 20040008619A1
• Time in Patent Office: 2,209 Days
• Field of Search: None
• US Class Current: 370/360
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

Multiple requests to set up and/or tear down connections in a node of a communication network (or multiple failure notifications) are bundled together for transmission within the network. In an “inter-nodal” embodiment, multiple connection requests/failure notifications are bundled together as a single message for transmission between pairs of nodes in the network. In an “intra-nodal” embodiment, multiple connection requests/failure notifications received at one component of a node in the network are bundled together as a single group for forwarding to another component within the same node for implementation. In either case, the bundling of multiple connection requests/failure notifications can reduce the total amount of time required to communicate and implement the desired connection requests/restoration processing. This reduction in time can be critical to the ability of a network to satisfy requirements associated with restoration processing following a network fault.

Claims

1. A method for generating and transmitting messages in a communication network, comprising the steps of:

(a) combining, at a first component of the communication network, a plurality of messages into a bundled message, wherein;

the plurality of messages comprises one of (i) at least two connection requests, (ii) at least one connection request and at least one failure notification, and (iii) at least two failure notifications;

when the bundled message comprises a plurality of connection requests, each of the connection requests corresponds to a request to configure a first switch node of the communication network for a different connection; and

when the bundled message comprises a plurality of failure notifications, each of the failure notifications corresponds to failure of a different connection in the communication network; and

(b) transmitting the bundled message to a second component of the communication network, wherein;

the second component recovers the plurality of messages from the bundled message;

when the bundled message comprises a plurality of connection requests, the second component implements the plurality of connection requests to configure the first switch node for a plurality of connections;

when the bundled message comprises a plurality of failure notifications, the second component initiates restoration processing for a plurality of connections; and

each of the first and second components is part of a switch node in the communication network.

2. The invention of claim 1, wherein the bundled message comprises a plurality of failure notifications.

3. The invention of claim 1, wherein the bundled message comprises one or more connection set-up requests.

4. The invention of claim 3, wherein the bundled message further comprises at least one connection tear-down request.

5. The invention of claim 1, wherein:

the second component is part of the first switch node; and

the first component is part of another switch node in the communication network.

6. The invention of claim 5, wherein the plurality of messages correspond to a single source-destination pair.

7. The invention of claim 1, wherein the bundled message comprises a plurality of connection requests that are part of restoration processing in the communication network.

8. The invention of claim 1, wherein both the first and second components are part of the first switch node, wherein the first component buffers the plurality of messages as they are received at the first switch node from one or more other switch nodes in the communication network.

9. The invention of claim 8, wherein the first component combines the plurality of messages into the bundled message after a specified time has elapsed.

10. The invention of claim 8, wherein the first component combines the plurality of messages into the bundled message after a specified number of messages have been received.

11. The invention of claim 8, wherein:

the first component receives information from the second component about its current processing capacity; and

the first component combines the plurality of messages into the bundled message when the second component currently has processing capacity to handle the bundled message.

12. The invention of claim 8, wherein the plurality of messages are received from two or more other switch nodes in the communication network and correspond to two or more different source-destination pairs.

13. The invention of claim 1, wherein step (a) comprises, at the first component, the steps of:

(a

     1) receiving, from another switch node of the communication network, a first bundled message comprising a first set of messages; and

(a2) generating a second bundled message comprising a subset of the first set of messages as well as one or more other messages received from one or more other switch nodes of the communication network, wherein the second bundled message is transmitted to the second component.

14. A method for receiving and processing messages in a communication network, comprising the steps of:

(a) receiving a bundled message at a second component of the communication network, wherein;

the bundled message was generated at a first component of the communication network and transmitted from the first component to the second component;

the bundled message comprises a plurality of messages;

the plurality of messages comprises one of (i) at least two connection requests, (ii) at least one connection request and at least one failure notification, and (iii) at least two failure notifications;

when the bundled message comprises a plurality of connection requests, each of the connection requests corresponds to a request to configure a first switch node of the communication network for a different connection;

when the bundled message comprises a plurality of failure notifications, each of the failure notifications corresponds to failure of a different connection in the communication network; and

each of the first and second components is part of a switch node in the communication network;

(b) recovering, at the second component, the plurality of messages from the bundled message;

(c) when the bundled message comprises a plurality of connection requests, implementing the plurality of connection requests to configure the first switch node for a plurality of connections; and

(d) when the bundled message comprises a plurality of failure notifications, initiating restoration processing for a plurality of connections.

15. The invention of claim 14, wherein the bundled message comprises a plurality of failure notifications.

16. The invention of claim 14, wherein the bundled message comprises one or more connection set-up requests.

17. The invention of claim 16, wherein the bundled message further comprises at least one connection tear-down request.

18. The invention of claim 14, wherein:

the second component is part of the first switch node; and

the first component is part of another switch node in the communication network.

19. The invention of claim 18, wherein the plurality messages correspond to a single source-destination pair.

20. The invention of claim 14, wherein the bundled message comprises a plurality of connection requests that are part of restoration processing in the communication network.

21. The invention of claim 14, wherein both the first and second components are part of the first switch node, wherein the first component buffers the plurality of connection requests as they are received at the first switch node from one or more other switch nodes in the communication network.

22. The invention of claim 21, wherein the first component combines the plurality of messages into the bundled message after a specified time has elapsed.

23. The invention of claim 21, wherein the first component combines the plurality of messages into the bundled message after a specified number of messages have been received.

24. The invention of claim 21, wherein:

the first component receives information from the second component about its current processing capacity; and

the first component combines the plurality of messages into the bundled message when the second component currently has processing capacity to handle the bundled message.

25. The invention of claim 21, wherein the plurality messages are received from two or more other switch nodes in the communication network and correspond to two or more different source-destination pairs.

26. A method for generating and transmitting messages in a communication network, comprising the steps of:

(a) combining, at a first component of the communication network, a plurality of messages into a bundled message, wherein;

the plurality of messages comprises one of (i) at least two connection requests, (ii) at least one connection request and at least one failure notification, and (iii) at least two failure notifications;

when the bundled message comprises a plurality of connection requests, each of the connection requests corresponds to a request to configure a first switch node of the communication network for a different connection; and

when the bundled message comprises a plurality of failure notifications, each of the failure notifications corresponds to failure of a different connection in the communication network; and

(b) transmitting the bundled message to a second component of the communication network, wherein;

the second component recovers the plurality of messages from the bundled message;

when the bundled message comprises a plurality of connection requests, the second component implements the plurality of connection requests to configure the first switch node for a plurality of connections;

when the bundled message comprises a plurality of failure notifications, the second component initiates restoration processing for a plurality of connections; and

the bundled message comprises at least one of a failure notification, a connection set-up request, and a connection tear-down request.

27. A method for receiving and processing messages in a communication network, comprising the steps of:

(a) receiving a bundled message at a second component of the communication network, wherein;

the bundled message was generated at a first component of the communication network and transmitted from the first component to the second component;

the bundled message comprises a plurality of messages;

the plurality of messages comprises one of (i) at least two connection requests, (ii) at least one connection request and at least one failure notification, and (iii) at least two failure notifications;

when the bundled message comprises a plurality of connection requests, each of the connection requests corresponds to a request to configure a first switch node of the communication network for a different connection;

when the bundled message comprises a plurality of failure notifications, each of the failure notifications corresponds to failure of a different connection in the communication network; and

the bundled message comprises at least one of a failure notification, a connection set-up request, and a connection tear-down request;

(b) recovering, at the second component, the plurality of messages from the bundled message;

(c) when the bundled message comprises a plurality of connection requests, implementing the plurality of connection requests to configure the first switch node for a plurality of connections; and

(d) when the bundled message comprises a plurality of failure notifications, initiating restoration processing for a plurality of connections.

28. A method for generating and transmitting messages in a communication network, comprising the steps of:

(a) combining, at a first component of the communication network, a plurality of messages into a bundled message, wherein;

the plurality of messages comprises one of (i) at least two connection requests, (ii) at least one connection request and at least one failure notification, and (iii) at least two failure notifications;

when the bundled message comprises a plurality of connection requests, each of the connection requests corresponds to a request to configure a first switch node of the communication network for a different connection; and

when the bundled message comprises a plurality of failure notifications, each of the failure notifications corresponds to failure of a different connection in the communication network; and

(b) transmitting the bundled message to a second component of the communication network, wherein;

the second component recovers the plurality of messages from the bundled message;

when the bundled message comprises a plurality of connection requests, the second component implements the plurality of connection requests to configure the first switch node for a plurality of connections;

when the bundled message comprises a plurality of failure notifications, the second component initiates restoration processing for a plurality of connections; and

the bundled message comprises a plurality of connection requests that are part of restoration processing in the communication network.

29. A method for receiving and processing messages in a communication network, comprising the steps of:

(a) receiving a bundled message at a second component of the communication network, wherein;

the bundled message was generated at a first component of the communication network and transmitted from the first component to the second component;

the bundled message comprises a plurality of messages;

the plurality of messages comprises one of (i) at least two connection requests, (ii) at least one connection request and at least one failure notification, and (iii) at least two failure notifications;

when the bundled message comprises a plurality of connection requests, each of the connection requests corresponds to a request to configure a first switch node of the communication network for a different connection;

when the bundled message comprises a plurality of failure notifications, each of the failure notifications corresponds to failure of a different connection in the communication network; and

the bundled message comprises a plurality of connection requests that are part of restoration processing in the communication network;

(b) recovering, at the second component, the plurality of messages from the bundled message;

(c) when the bundled message comprises a plurality of connection requests, implementing the plurality of connection requests to configure the first switch node for a plurality of connections; and

(d) when the bundled message comprises a plurality of failure notifications, initiating restoration processing for a plurality of connections.